Wikia

Psychology Wiki

Anterior horn (spinal cord)

Talk0
34,140pages on
this wiki

Redirected from Anterior column

Anterior horn (spinal cord)
Medulla spinalis - Section - Latin
Item #1
Latin cornu anterius medullae spinalis
Gray's subject #185 753
System
MeSH [1]
[[Image:|190px|center|]]

The anterior horn of the spinal cord (or anterior cornu, or anterior column is the ventral (front) grey matter section of the spinal cord.

The anterior horn contains motoneurons that effect the axial muscles while the posterior horn receives information regarding touch and sensation.

The anterior horn is where the cell bodies of alpha motorneurons are located.

PathologyEdit

It is these cells that are affected in the so-called "Anterior Horn Diseases", namely Amyotrophic Lateral Sclerosis, Spinal muscular atrophy, Charcot-Marie-Tooth disease and Progressive muscular atrophy.

Anatomical detailsEdit

The Anterior Column (anterior cornu, anterior horn), directed forward, is broad and of a rounded or quadrangular shape.

Its posterior part is termed the base, and its anterior part the head, but these are not differentiated from each other by any well-defined constriction.

It is separated from the surface of the medulla spinalis by a layer of white substance which is traversed by the bundles of the anterior nerve roots.

In the thoracic region, the postero-lateral part of the anterior column projects lateralward as a triangular field, which is named the lateral column (columna lateralis; lateral cornu).

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

This page uses Creative Commons Licensed content from Wikipedia (view authors).

Around Wikia's network

Random Wiki